Geomorphology of Gale Crater, Rock on! |
Geomorphology of Gale Crater, Rock on! |
Sep 26 2012, 10:22 PM
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Senior Member Group: Members Posts: 3516 Joined: 4-November 05 From: North Wales Member No.: 542 |
I'd like a discussion thread about the geology detatched from the time limits of current MSL threads. We had a 'Geomorphology of Cape York' thread that attracted a lot of interesting posts. How about 'Geomorphology of Gale Crater'? I have one or two ideas but many more questions, and I'd like to post them in a longer-running thread away from the day to day imaging discussion. Any other takers?
For starters, does anybody have a contour map of this place like the one at Meridiani with 5m intervals? ADMIN: You have your wishes fulfilled on UMSF (sometimes) |
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Dec 25 2016, 05:19 PM
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Member Group: Members Posts: 808 Joined: 10-October 06 From: Maynard Mass USA Member No.: 1241 |
Hematite? (aka Squyers' blueberries)
-------------------- CLA CLL
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Guest_Steve5304_* |
Dec 28 2016, 04:00 AM
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Guests |
Hematite? (aka Squyers' blueberries) To big...process may be similiar but material is probably different.... Don't think we have all the pieces to the puzzle I hope curl does some sciene on that. We passed two others that looked identical on sol 937, 1185, in different sorts of terrain. Pretty strange formation it would be about the size of a marble. |
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Dec 28 2016, 06:29 PM
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Member Group: Members Posts: 684 Joined: 24-July 15 Member No.: 7619 |
To big...process may be similiar but material is probably different. ... Pretty strange formation it would be about the size of a marble. Well, it looks very similar in size to the low grade copper concretions that occur along the US east coast. Triassic mudstones + igneous intrusions = marble sized ore concretions, usually copper, silver, gold, arsenic. In my experience, they're usually within about 1 km of the igneous contact. When the contact is is folded, (scallop shell) instead of flat (clam shell) they mudstone ores seem to occur more in the peaks (anticlines). You can see concretions in situ and some spherical voids where others weathered out. US penny for scale. |
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